Appspy: It's worth grabbing Laser Dolphin for the name alone, especially when it lives up to the name by letting you pilot a dolphin with a fricken' laser on its head; (insert evil 'muahahahaha's in here).
GamePro - This sea-based shoot-'em-up charms with its outlandish concept and frantic gameplay, but a lack of variety and repetitive action means it gets too old too soon.